sudo /etc/init.d/apache2 restart

* Restarting web server apache2                                        [ OK ]

Apr 28 16:28:37 ubuntu-server kernel: [ 9061.735298] apache2[13102]: segfault at 0 ip 00007fe46d8d7476 sp 00007ffd6f130ba8 error 4 in libc-2.15.so[7fe46d7a6000+1b4000]

sudo tail -f -n 10 /var/log/syslog

sudo service apache2 restart

sudo service apache2 stop

sudo service apache2 start

Apr 28 16:28:37 ubuntu-server kernel: [ 9061.735298] apache2[13102]: segfault at 0 ip 00007fe46d8d7476 sp 00007ffd6f130ba8 error 4 in libc-2.15.so[7fe46d7a6000+1b4000]